<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script  type="text/javascript" src="https://cdn.bootcdn.net/ajax/libs/jquery/1.10.0/jquery.js"></script>
</head>
<body>
        <img id="small" src="img/秦牛正威.jpg" />
        <div id="showBig">

        </div>
</body>
</html>